This is a weird year to judge for me. Hakeem is obviously #1, but all the players after him have warts. I feel like everyone is #4 quality this year and nobody's a legit #2. Going down it...
Karl Malone had a way off year statistically. After 6 straight years of 27-29ppg at .60 TS%, he drops to 25ppg .55 TS%. Even stranger is he did this jumping way up to 40-41mpg. His per 36 average was 22ppg .55 TS% which is

for Karl. And the team results showed it. Only 53 wins. He played well in the playoffs but I don't know how much credit I give for beating 8th seed Denver in round 2, similar to the 07 Jazz. Furthermore the Jazz were up 3-0 and let it get to Game 7 surprisingly. With that said he didn't have a clear letdown in the playoffs
David Robinson. Crazy regular season - 30/11/5/3.3/1.7 statline at .58 TS%, with a 30.7 PER. Dropped 71 on the last day. And with DPOY caliber d. Ended up with 55 wins. I'm surprised he didn't win MVP over Hakeem with that great resume though obviously Olajuwon winning ended up the right decision. And then as always the case with Robinson, there's the playoffs. When you have HCA against Utah the game is always to hold your own court. Because needing to win a game in Utah is death. And Robinson failed this game as poorly as you POSSIBLY CAN. He scored 12 points on 2-14 shooting in Game 2 in San Antonio. 2-14. Utah's C was Felton Spencer... he scored 15 on 6 for 9. Felton Spencer outplayed Robinson. Felton Spencer. Robinson's Game 3 was almost as bad. He scored 16 on 8 for 21 shooting on 0 FTAs. Robinson will be tough to make my top 5 because that is simply embarrasing.
Shaq... already dropping 29/13/3 in his 2nd year. But still very young and his first time in the playoffs. His playoffs were decent not great. 24, 15, 23 points, and in games 1 and 3 he played 45 minutes. Per 36 minutes those games adjust to 19.2 and 18.4. That's a pretty weak 3 games for a dominant 30ppg scorer. Furthermore Orlando lost their first 2 home games by 3 points combined. Orlando this year was a classic 'super young stars' team who doesn't have the reps to win yet despite great talent
Barkley, my issues are the missed games and moreso than that, the Rockets series. They won the first two games in Houston and still lost. That's bad. It's like if the Celtics lost to Orlando this year after the first two games. When you go up 2-0 as the road team it should be over. And Barkley deserves blame... Game 3 which turned the series, he shot 9 for 22 and had 0 FTAs. Game 4 he scored 19 points on 7 for 21. Barkley needed to be better.
Pippen. Put up 22/9/5.6 with elite d and carried a surprising Bulls team. Extremely nice year and proof he could do it without Jordan. But I'm still not sure he was as good as these franchise guys.
Ewing had a really solid year. Dropped 24/11/3 with d, the Knicks mostly took care of business on their way to the finals. I still think Ewing's destiny was to do with KG did in 08 as a guy who could still be the best player on a title team, but with at least 1 or 2 legit offensive players who could say "Ok Patrick, we'll take it from here". Or when Lebron started going off against those Celtics, Pierce fought right back. That's what Ewing needed, particularly against Jordan. And even with that he still came within a hair of winning the title. The Knicks took one of the first two games in Houston and then gave away HCA again. Game 6 was a 2pt game. Game 7 was a 6 point game with John Starks' grim reaper game. I'm still not sure about giving Ewing too much credit for winning the East because the Jordan-less Bulls and the Pacers weren't all that great - but in this case it'll probably be enough because almost everyone else screwed up.
My vote:
1. Hakeem Olajuwon
2. Karl Malone
3. Patrick Ewing
4. Scottie Pippen
5. David Robinson
I had a tough time choosing between Drob/Barkley/Shaq all of which I wasn't impressed with in the playoffs, I went with Drob because he had by far the best RS